Closed efficient dust removal coke barrier car

Abstract

The invention relates to a closed efficient dust removal coke barrier car which comprises a coke guide device, a dust removal device and a lifting device which are arranged on a coke barrier car body, the dust removal device is arranged on the outer side of the coke guide device in a sealed mode, a maintenance opening is formed in the upper portion of the coke guide device, and the lifting device can stretch into the maintenance opening. The dust removal device comprises a fixed dust collection cover, a water curtain dust removal assembly and a dust removal fan, the fixed dust collection cover is arranged on the outer side of the coke guide device in a sealed mode and communicates with the water curtain dust removal assembly, and the water curtain dust removal assembly communicates with an air inlet of the dust removal fan; and the movable dust collecting cover is butted with the coke oven. The dust is not driven by hot air flow caused by temperature difference, air is isolated from hot coke, the problem of environmental pollution is directly solved from the source, the dust removal rate can reach 99% or above, meanwhile, the loss of coke powder is also solved, a high-energy-consumption ground dust removal station can be replaced, and the investment cost and the operation cost are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of coke intercepting vehicles, and in particular relates to a closed and efficient dust-removing coke intercepting vehicle. Background Art

[0002] The task of the coke-blocking car is to open and close the coke side doors of the coke oven, handle the head and tail coke, and guide the pushed coke into the coke quenching car through the coke guide grid when pushing the coke.

[0003] In conventional coke removal, since the coke at about 1000℃ is completely exposed to the atmosphere, the air in contact with the hot coke is quickly heated to generate thermal buoyancy. After the hot air rises rapidly, the cold air drawn in is also quickly heated and floats up, so that a continuous hot free airflow carries a large amount of coke powder and dust in the hot coke and escapes outward, which not only pollutes the atmosphere, but also causes a large amount of coke powder loss. After adding a ground dust removal station, in order to ensure that the gas that may escape around the hot coke is completely extracted without leaving any dead corners, a fan with a suction force 2-3 times greater than the outward escape gas flow is often used to prevent escape, which will inevitably lead to an exponential increase in the gas flow through the hot coke. The airflow velocity through the hot coke is proportional to the airflow volume, and the amount of coke powder and dust carried by the airflow is proportional to the square of the airflow velocity. The higher the velocity, the larger the particle size of the coke powder. After passing through the dust removal device, a large amount of high-carbon dust will inevitably be generated, which is difficult to handle. These high-carbon dusts will not only waste resources, but also cause serious pollution to the atmospheric environment and have a serious impact on the health of workers. Large airflow processing will also make the investment cost and operating cost of the ground dust removal station very high. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a closed and efficient dust-removing coke intercepting car to address the deficiencies of the prior art, so that the dust will not be driven by the hot air flow caused by the temperature difference, and the contact between the air and the hot coke is completely isolated, thereby solving the environmental pollution problem directly from the source, effectively inhibiting carbon loss and controlling pollution from the source. The dust removal rate can reach more than 99%, while also solving the loss of coke powder. It can also replace high-energy consumption ground dust removal stations and reduce investment and operating costs.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A closed high-efficiency dust removal coke intercepting vehicle comprises a coke guiding device, a dust removal device and a lifting device arranged on the coke intercepting vehicle body. The dust removal device is sealed and arranged on the outside of the coke guiding device. A maintenance port is provided above the coke guiding device. The lifting device can extend into the maintenance port. The dust removal device comprises a fixed dust collecting hood, a water curtain dust washing component and a dust removal fan. The fixed dust collecting hood is sealed and arranged on the outside of the coke guiding device. The fixed dust collecting hood is connected to the water curtain dust washing component. The water curtain dust washing component is connected to the air inlet of the dust removal fan. The coke intercepting vehicle body is provided with a coke discharge sealing device docking with a coke quenching vehicle, and a movable dust collecting hood docking with a coke oven. The dust removal system can reduce the generation of carbon-containing dust by more than 90%, of which carbon loss is reduced by more than 95%. When the wet quenching process is adopted, the docking point between the coke intercepting car and the coke quenching car must adopt a water seal structure to control the leakage of water vapor; when the dry quenching process is adopted, the docking point between the two cars can adopt a water seal structure or a dry seal structure. When the dry seal structure is adopted, the air volume of the dust removal fan should be increased by about 20%. Since the docking point between the coke guide device and the furnace door cannot be sealed with a water seal, the sealing effect is poor, and a small amount of air will still enter the coke discharge system, so it is necessary to remove dust through a water curtain dust scrubber plus a cyclone high-efficiency dust removal system. The dust removal system of the coke intercepting car can make the dust removal rate of the exhaust gas during coke discharge reach more than 99%.

[0007] In order to better realize the present invention, the above structure is further optimized, the focus guide device includes a plurality of focus guide grid groups connected vertically, and an expansion gap is left between two adjacent focus guide grid groups, and the focus guide grid group includes a plurality of unit focus guide grids connected in sections on the left and right. Each unit is connected in a sectioned detachable manner.

[0008] In order to better realize the present invention, the above structure is further optimized. The unit focus guide grid includes a frame and a plurality of angle steels arranged inside the frame. One end of the angle steel is fixed to the frame, and the other end is pressed against a neighboring angle steel. The compression seam structure that allows expansion and contraction can effectively prevent the heat of the high-temperature red coke from being directly radiated to the external frame through the focus guide grid, thereby causing frequent cold and hot deformation of the external frame, and also control the dust from escaping to both sides.

[0009] In order to better realize the present invention, further optimization is made in the above structure, and the water curtain dust cleaning component includes a dust scrubber and a sewage dust filtering component arranged below the dust scrubber.

[0010] In order to better realize the present invention, further optimization is made in the above structure. The dust scrubber includes a shell, a nozzle arranged on the top of the inner side of the shell, and a plurality of water collecting covers and water dispersing covers arranged vertically and spaced apart in the shell.

[0011] In order to better realize the present invention, further optimization is made in the above structure, the water collecting cover is an inverted cone structure, and the water dispersing cover is a conical structure.

[0012] In order to better realize the present invention, the above structure is further optimized, and a spiral ash slurry discharger is arranged at the lower part of the sewage dust filter assembly, so as to discharge the ash slag to the external ash slurry receiving vehicle regularly.

[0013] In order to better realize the present invention, further optimization is made in the above structure. The coke removal sealing device includes a fixed sealing cover, a movable sealing cover, a fixed water inlet pipe, a movable water inlet pipe and a lifting hydraulic cylinder arranged at the bottom of the coke intercepting vehicle body. The movable sealing cover is slidably sleeved on the fixed sealing cover up and down, and the lifting hydraulic cylinder is connected to drive the movable sealing cover to move up and down. A circle of U-shaped grooves is arranged on the outer side of the fixed sealing cover, and a circle of N-shaped grooves is arranged on the inner side of the movable sealing cover. Moving the movable sealing cover downward can insert the N-shaped groove into the U-shaped groove. The fixed water inlet pipe is arranged on the fixed sealing cover, and water can be injected into the U-shaped groove. The movable water inlet pipe is arranged on the movable sealing cover, and water can be injected below the movable sealing cover.

[0014] In order to better realize the present invention, the above structure is further optimized, and a door-removing device is also arranged on the coke-blocking vehicle body, which includes a moving frame, a sliding plate, a door-removing hook and a door-removing hydraulic cylinder. Two door-removing hooks are arranged, and the two door-removing hooks are connected by a rod body and slide up and down on the sliding plate, and driven by a door-removing hydraulic cylinder, and the sliding plate is slidably arranged on the moving frame. It is more flexible, has less running friction and is more durable.

[0015] In order to better realize the present invention, the above structure is further optimized, the dust removal fan is a wet cyclone dust removal fan, and the exhaust port of the wet cyclone dust removal fan is also connected to the muffler chamber. The running power of the smoke and dust in the dust removal system comes from the wet cyclone dust removal fan.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The enclosed high-efficiency dust removal coke intercepting car provided by the present invention is carried out in a fully enclosed state when discharging coke. The dust control system of the coke intercepting car of the present invention controls pollution from the source, which can reduce the generation of carbon-containing dust by more than 90%, among which carbon loss is reduced by more than 95%. Since the coke guide device and the furnace door cannot be sealed with a water seal, the sealing effect is poor, and a small amount of air still enters the coke discharge system, so it is necessary to pass through a water curtain dust scrubber plus a cyclone high-efficiency dust removal system for dust removal. The dust removal system of the coke intercepting car can make the dust removal rate of the exhaust gas during coke discharge reach more than 99%. The dust removal system process of the coke intercepting car of the present invention is that the smoke and dust airflow generated by the coke discharge passes through a multi-stage water curtain dust scrubber for dust removal, and then enters a cyclone dust removal fan for high-efficiency dust removal. Its effect is better than that of a ground dust removal station, and it has the advantages of simple maintenance, low energy consumption, low investment cost, low operating cost, and low noise. Therefore, the dust control system and dust removal system of the coke intercepting car of the present invention can effectively suppress carbon loss and control pollution from the source, and can replace high-energy-consuming ground dust removal stations, thereby reducing investment costs and operating costs. Moreover, the coke intercepting car is equipped with a lifting device, which can be used to easily lift heavy objects and facilitate the routine maintenance and replacement of parts of the coke intercepting car and the coke quenching car during the coke oven production process, especially for enterprises that do not have a permanent crane. The fully enclosed coke discharge system of the coke intercepting car provided by the present invention is far ahead of the existing technology in terms of environmental protection, and provides an excellent answer to the increasingly severe environmental protection issues. It closely follows the pace of the country's increasing emphasis on environmental protection policies and makes a significant contribution to the environmental protection cause. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a front view of the closed high-efficiency dust removal coke intercepting vehicle of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the focus guide grid assembly in the present invention;

[0021] Figure 3 yes Figure 2 Enlarged cross-sectional view of AA in the middle;

[0022] Figure 4 It is a schematic diagram of the structure of the door-removing device in the present invention;

[0023] Figure 5 is a top view of the dust removal device of the present invention;

[0024] Figure 6 yes Figure 5 Cross-sectional view of the middle BB;

[0025] Figure 7 yes Figure 6 Cross-sectional view of CC;

[0026] Figure 8 This is a schematic diagram of the structure of the present invention before docking with the coke quenching vehicle;

[0027] Fig. 9 It is a schematic diagram of the structure after the present invention is docked with the coke quenching car.

[0028] In the figure:

[0029] 1-coke blocking car body, 2-coke guiding device, 201-coke guiding grid group, 202-expansion joint, 203-frame, 204-angle steel, 3-dust removal device, 301-fixed dust collecting hood, 302-water curtain dust cleaning assembly, 3021-shell, 3022-nozzle, 3023-water collecting hood, 3024-water dispersion hood, 3025-water curtain, 303-dust removal fan, 304-muffler chamber, 4-lifting device, 5-coke discharge sealing device Position, 501-fixed sealing cover, 5011-u-type groove, 502-movable sealing cover, 5021-n-type groove, 503-fixed water inlet pipe, 504-movable water inlet pipe, 505-lifting hydraulic cylinder, 6-coke quenching car coke receiving tank, 601-sealed water tank, 7-sewage dust filter assembly, 8-spiral ash slurry discharge machine, 9-door removal device, 901-mobile frame, 902-sliding plate, 903-door removal hook, 904-door removal hydraulic cylinder. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise specified, the meaning of "plurality" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Reference Figure 1-Figure 9 The enclosed high-efficiency dust-removing coke intercepting car provided by the present invention comprises a coke guiding device 2, a dust removal device 3 and a lifting device 4 arranged on the coke intercepting car body 1. The coke intercepting car of the present invention cooperates with the coal loading car, coke pushing car and coke quenching car of the CX type heat recovery process, and adopts a fully enclosed coal loading and coke discharging method to prevent the external air from forming an airflow and entering the dust removal system. Compared with the existing open coke discharging technology, this technology cuts off the generation of a large amount of airflow from the source. This step directly reduces the generation of smoke and dust by 90%, and directly controls the pollution from the source. During the entire dust removal process, the dust removal efficiency is high and there is no noise, and the investment cost and operating cost are very low. Because it is a fully enclosed coke discharging method, the heat of the high-temperature red coke cannot be directly radiated to the outside, and no carbon-containing dust is directly discharged into the surrounding environment, so it can greatly improve the working environment of the coke oven and the coke intercepting car, and ensure the safety and health of the workers.

[0034] like Figure 2 and Figure 3 As shown, the focus guide device 2 includes a plurality of focus guide grid groups 201 connected vertically, and an expansion joint 202 is left between two adjacent focus guide grid groups 201. The focus guide grid group 201 includes a plurality of unit focus guide grids detachably connected in left and right sections. The unit focus guide grid includes a skeleton 203 and a plurality of angle steels 204 arranged on the inner side of the skeleton 203. One end of the angle steel 204 is fixedly arranged on the skeleton 203, and the other end is pressed against the adjacent angle steel 204. The focus intercepting vehicle of the present invention effectively solves the problem of deformation of the focus guide grid caused by rapid temperature changes from a structural point of view. The focus guide grid is not welded, and damaged parts inside the focus guide grid can be replaced in a short time during online maintenance without disassembly of the whole. In this embodiment, the five-group focus guide grid group 201 of the focus intercepting vehicle is composed of a plurality of unit focus guide grids that can be disassembled in sections. The height of each unit focus guide grid is about 1 meter, and the height can be adjusted according to actual design requirements. The units are connected in sections in a detachable manner. Each unit focus grid has a frame 203 as support, and the frame 203 is welded with unequal angle steel 204 inside. The frame 203 is fixed to the focus grid main body steel by bolts connecting the focus grid outer frame. Expansion joints 202 are left between the focus grid groups 201. Figure 3As shown in the structure, the focus guide grid group is composed of a plurality of unequal angle steels 204, and a compression seam structure that allows expansion and contraction is used between the angle steels. One side of the angle steel is welded to the frame 203, and the other side is superimposed on the next angle steel. When the focus guide grid contacts the high-temperature coke, the expansion of the angle steel 204 affected by the high temperature will not have any effect on the focus guide grid structure, so the deformation of the focus guide grid can be avoided. At the same time, the closed structure of the focus guide grid of the present invention can prevent the heat of the high-temperature coke from being directly radiated to the fixed dust collecting hood 301, thereby avoiding the fixed dust collecting hood 301 from being deformed by the high temperature, and also controlling the dust from escaping to both sides.

[0035] like Figure 5 , Figure 6 and Figure 7 As shown, the dust removal device 3 includes a fixed dust collecting hood 301, a water curtain dust cleaning component 302 and a dust removal fan 303. The dust removal fan 303 is a wet cyclone dust removal fan, and the exhaust port of the wet cyclone dust removal fan is also connected to the muffler chamber 304. The fixed dust collecting hood 301 is sealed and arranged outside the coke guiding device 2. The fixed dust collecting hood 301 is connected to the water curtain dust cleaning component 302, and the water curtain dust cleaning component 302 is connected to the air inlet of the dust removal fan 303. When the coke is discharged, the smoke generated by the coke discharge and the coke falling enters the fixed dust collecting hood 301, and is attracted by the suction force of the wet cyclone dust removal fan 303. The smoke in the fixed dust collecting hood 301 moves in the direction indicated by the arrow in the figure, and the smoke gas enters the first water curtain dust scrubber and runs from bottom to top, and enters the second water curtain dust scrubber after crossing from the top, and runs from top to bottom in the second water curtain dust scrubber. After the coke smoke is washed by multiple layers of water curtains, more than 80% of the larger particles can be removed. Then the gas containing small particles of dust enters the wet cyclone dust removal fan 33 for dust removal. The purified gas enters the circuitous silencer chamber 304 through the exhaust pipe, eliminates the whistling sound generated by the rapid flow of air in a circuitous way, and then is discharged into the atmosphere.

[0036] The number of water curtain dust removal levels depends on the fineness of dust particles. The number of levels should be increased when the particle size is finer. The water curtain structures of each level can be divided into two or more groups according to the spatial position. The short water curtain formed by this structure overcomes the defect that the lower part of the high water curtain becomes a water column due to the surface tension of water, resulting in a large amount of dust-laden airflow leaking through the net. It also overcomes the disadvantage of doubling the water volume to make the water curtain continuous, resulting in doubling the power consumption and cost. The water curtain dust scrubber can be set up in multiples according to actual needs. In this embodiment, two water curtain dust scrubbers are set up, with a total of 14 water curtains.

[0037] The water curtain dust scrubber assembly 302 includes a dust scrubber and a sewage dust filter assembly 7 disposed below the dust scrubber. The dust scrubber includes a housing 3021, a nozzle 3022 disposed at the top of the inner side of the housing 3021, and a plurality of inverted cone-shaped water collecting covers 3023 and conical water dispersing covers 3024 disposed vertically and spaced apart in the housing 3021. The water flows from the water curtain dust scrubber assembly 302 from top to bottom. The water flows from the washing water nozzle 3022 and is sprayed into the dust scrubber in large quantities. The water flows downward along the multiple layers of inverted cone-shaped water collecting covers 3023 and conical water dispersing covers 3024 spaced apart from each other, forming layers of water curtains 3025. The water flows down from the inner circular edge of the inverted cone-shaped water collecting covers 3023 to form a water curtain 3025, and then flows downward through the middle and lower part of the conical water dispersing covers 3024 in the lower layer, and flows downward from the outer circular edge to form another circle of water curtains 3025. The spaced collecting and distributing water covers form multi-layer water curtains during the downward flow of water to wash the passing smoke and dust.

[0038] A spiral ash slurry discharger 8 is provided at the bottom of the sewage dust filter assembly 7. Washing water that has washed the smoke enters the sewage dust filter assembly 7, and the water enters the circulating water tank after being filtered. Ash slag enters the spiral ash slurry discharger 8 at the bottom along the sewage dust filter assembly 7, and the spiral ash slurry discharger 8 can discharge the ash slag to the external ash slurry receiving vehicle. The circulating water in the circulating water tank is driven by a circulating water pump, and the circulating water after dust removal can be pumped into the washing water nozzle 3022 at the top of the water curtain dust scrubber again to spray into the dust scrubber in large quantities. In addition to the circulating water, the water curtain dust scrubber of the coke intercepting vehicle can also be replenished with water through multiple replenishing water pipes arranged at the top of the furnace head on the coke side of the coke oven.

[0039] A maintenance opening is provided above the coke guide device 2, and the lifting device 4 can be inserted into the maintenance opening. The coke guide grid is detachably connected, so that damaged parts can be lifted out from the opening space. If a part is damaged, it can be disassembled from the main steel structure of the coke guide grid at the flange, and the damaged part can be moved to the opening of the maintenance opening at the top of the guide rail and lifted out, and a new part can be lifted in from the maintenance opening at the top of the guide rail and connected to the main steel structure of the coke guide grid, so that the damaged part can be repaired and replaced online in a short time. In particular, enterprises without a permanent crane can conveniently lift heavy objects during the coke oven production process, and facilitate the maintenance and replacement of parts by the coke blocking car and the coke quenching car.

[0040] The coke intercepting car body 1 is provided with a coke discharge sealing device 5 which is connected to the coke quenching car. When the wet coke quenching process is adopted, the docking point of the coke intercepting car and the coke quenching car must adopt a water seal structure to control the leakage of water vapor; when the dry coke quenching process is adopted, the docking point of the two cars can adopt a water seal structure or a dry seal structure. When the dry seal structure is adopted, the air volume of the dust removal fan should be increased by about 20%. There is also a movable dust collecting hood connected to the coke oven, which adopts a fully enclosed coal loading and coke discharging method, directly cutting off the generation of a large amount of airflow from the source.

[0041] like Figure 8 and Fig. 9 As shown, the coke intercepting car and the coke quenching car are in two front and back states when docking. The coke discharge sealing device 5 includes a fixed sealing cover 501, a movable sealing cover 502, a fixed water inlet pipe 503, a movable water inlet pipe 504 and a lifting hydraulic cylinder 505 arranged at the bottom of the coke intercepting car body 1. The movable sealing cover 502 is slidably sleeved on the fixed sealing cover 501 up and down, and the lifting hydraulic cylinder 505 is connected to drive the movable sealing cover 502 to move up and down. A circle of U-shaped grooves 5011 is arranged on the outer side of the fixed sealing cover 501, and a circle of N-shaped grooves 5021 is arranged on the inner side of the movable sealing cover 502. Moving the movable sealing cover 502 downward can make the N-shaped grooves 5021 inserted into the U-shaped grooves 5011. The fixed water inlet pipe 503 is arranged on the fixed sealing cover 501, and water can be injected into the U-shaped grooves 5011. The movable water inlet pipe 504 is arranged on the movable sealing cover 502, and water can be injected into the sealed water tank 601 below the movable sealing cover 502. During the coke receiving process, the coke receiving tank 6 of the quenching car moves to the bottom of the coke intercepting car. After alignment, the lifting hydraulic cylinder 505 drops the movable sealing cover 502 of the coke intercepting car into the sealed water tank 601 of the coke intercepting car. At the same time, the n-shaped groove 5021 at the other end of the movable sealing cover 502 will also fall into the u-shaped groove 5011 at the bottom of the fixed sealing cover 501 of the coke intercepting car. At this time, the fixed water inlet pipe 503 and the movable water inlet pipe 504 replenish water to the u-shaped groove 5011 and the sealed water tank 601 of the coke intercepting car, and the movable sealing cover 502 is sealed with the fixed sealing cover 501 and the sealed water tank 601 of the coke quenching car respectively to prevent smoke and dust from escaping from the joint of the two cars. After the coke receiving is completed, the lifting hydraulic cylinder 505 lifts the movable sealing cover 502 of the coke intercepting car.

[0042] like Figure 4 As shown, the coke-blocking vehicle body 1 is also provided with a door-removing device 9, which includes a moving frame 901, a sliding plate 902, a door-removing hook 903 and a door-removing hydraulic cylinder 904. Two door-removing hooks 903 are provided, and the two door-removing hooks 903 are connected by a rod body and slidably set on the sliding plate 902 up and down, and driven by a door-removing hydraulic cylinder 904. The sliding plate 902 is slidably set on the moving frame 901, and the sliding plate 902 is made of polymer material. The door-lifting structure of the present application is an integrated structure with a simple structure. The upper and lower door-removing hooks 903 are driven by the same hydraulic cylinder, and a polymer sliding plate 902 is provided, so that the door-removing mechanism is more flexible, the operating friction is smaller and more durable. Compared with the conventional door-removing mechanism, the door-removing device of the present invention has a simpler structure and a more flexible door-removing action.

[0043] The operation mode of the coke intercepting vehicle of the present invention is as follows:

[0044] The coke in the coke oven carbonization chamber is mature and ready to be discharged. The coke pushing car, coke blocking car and coke quenching car are in place. The door-removing device 9 of the coke blocking car is aligned with the carbonization chamber to be discharged, and the furnace door is opened and removed. At the same time, the coke pushing car also removes the furnace door, and the coke blocking car starts to move so that the center line of the coke guiding device 2 is aligned with the center line of the carbonization chamber. Then the coke guiding grid group 201 and the movable dust collecting hood are docked in the furnace frame, the coke guiding groove is locked, and the coke quenching car is in place. The coke blocking car drops the movable sealing cover 502 into the sealed water tank 601 of the coke quenching car. The coke pushing car moves the coke pushing rod and the center line of the movable dust collecting hood to the center line of the carbonization chamber. After the three cars are chained and send out the in-place signal at the same time, the coke pushing car starts to push coke. The entire coke pushing process is carried out in a fully enclosed environment, so basically no smoke and dust will escape, and it is environmentally friendly and pollution-free. After pushing the coke, the coke guiding device 2, movable dust collecting hood and movable sealing hood 502 of the coke intercepting car return to the starting position, and the coke intercepting car starts to move, aligns the door removing device 9 with the center line of the carbonization chamber, moves the furnace door to reset it, and after closing the furnace door, the coke intercepting car moves to the next carbonization chamber to prepare for coke discharge.

[0045] During the coke discharge process, there are movable dust collecting hoods between the coke pushing car and the coke blocking car and the furnace frame for sealing, there are movable sealing hoods 502 and a sealed water tank 601 for the coke blocking car and the coke quenching car for sealing, and there is a fixed dust collecting hood 301 for sealing the outside of the coke guide grid, so the entire coke discharge process is carried out in a closed environment. The smoke and dust in the entire system continuously enter the water curtain dust scrubber in the vehicle-mounted dust removal device 3 in the closed space with the suction force of the wet cyclone dust removal fan 303 in the vehicle-mounted dust removal device 3 of the coke blocking car. The dust is washed by multiple layers of water curtains in the water curtain dust scrubber to remove more than 80% of larger particles. Then the gas containing small particles of dust enters the wet cyclone dust removal fan 303 in the vehicle-mounted dust removal device 3. After the gas is dusted again by the wet cyclone dust removal fan 303, the dust content will reach below the emission standard, and the purified gas enters the roundabout silencer 304 through the exhaust pipe and is discharged after silencing.

[0046] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A closed type high-efficiency dust removal coke intercepting vehicle, characterized in that: The invention comprises a coke guiding device (2), a dust removing device (3) and a lifting device (4) which are arranged on a coke intercepting vehicle body (1); the dust removing device (3) is sealed and arranged outside the coke guiding device (2); a maintenance opening is provided above the coke guiding device (2); the lifting device (4) can extend into the maintenance opening; the dust removing device (3) comprises a fixed dust collecting hood (301), a water curtain dust washing assembly (302) and a dust removing fan (303); the fixed dust collecting hood (301) is sealed and arranged outside the coke guiding device (2); the fixed dust collecting hood (301) is connected to the water curtain dust washing assembly (302); the water curtain dust washing assembly (302) is connected to the air inlet of the dust removing fan (303); the coke intercepting vehicle body (1) is provided with a coke discharge sealing device (5) which is connected to a coke quenching vehicle; and a movable dust collecting hood which is connected to a coke oven.

2. A closed type high-efficiency dust removal coke intercepting vehicle according to claim 1, characterized in that: The focus guide device (2) comprises a plurality of focus guide grid groups (201) connected vertically, and an expansion joint (202) is left between two adjacent focus guide grid groups (201). The focus guide grid group (201) comprises a plurality of unit focus guide grids connected in left and right sections.

3. A closed type high-efficiency dust removal coke intercepting vehicle according to claim 2, characterized in that: The unit focus guide grid comprises a frame (203) and a plurality of angle steels (204) arranged inside the frame (203); one end of the angle steel (204) is fixedly arranged on the frame (203) and the other end is pressed against a neighboring angle steel (204).

4. The closed type high-efficiency dust removal coke intercepting vehicle according to claim 1 is characterized in that: The water curtain dust scrubbing assembly (302) comprises a dust scrubber and a sewage dust filtering assembly (7) arranged below the dust scrubber.

5. The closed type high-efficiency dust removal coke intercepting vehicle according to claim 4 is characterized in that: The dust scrubber comprises a shell (3021), a nozzle (3022) arranged at the top of the inner side of the shell (3021), and a plurality of water collecting covers (3023) and water dispersing covers (3024) arranged vertically and spaced apart in the shell (3021).

6. A closed type high-efficiency dust removal coke intercepting vehicle according to claim 5, characterized in that: The water collecting cover (3023) is an inverted cone-shaped structure, and the water dispersing cover (3024) is a conical structure.

7. The closed type high-efficiency dust removal coke intercepting vehicle according to claim 4 is characterized in that: A spiral mortar discharge machine (8) is arranged at the lower part of the sewage dust filter assembly (7).

8. A closed type high-efficiency dust removal coke intercepting vehicle according to any one of claims 1 to 7, characterized in that: The coke removal sealing device (5) comprises a fixed sealing cover (501), a movable sealing cover (502), a fixed water inlet pipe (503), a movable water inlet pipe (504) and a lifting hydraulic cylinder (505) arranged at the bottom of the coke intercepting vehicle body (1); the movable sealing cover (502) is slidably sleeved on the fixed sealing cover (501) in an upward and downward manner; the lifting hydraulic cylinder (505) is connected to drive the movable sealing cover (502) to move up and down; a circle of U-shaped grooves (503) are arranged on the outer side of the fixed sealing cover (501) 11), a circle of n-type grooves (5021) are arranged on the inner side of the movable sealing cover (502), and the n-type grooves (5021) can be inserted into the u-type grooves (5011) by moving the movable sealing cover (502) downwards, the fixed water inlet pipe (503) is arranged on the fixed sealing cover (501), and water can be injected into the u-type grooves (5011), and the movable water inlet pipe (504) is arranged on the movable sealing cover (502), and water can be injected below the movable sealing cover (502).

9. The closed type high-efficiency dust removal coke intercepting vehicle according to claim 1, characterized in that: The coke intercepting vehicle body (1) is also provided with a door-removing device (9), the door-removing device (9) comprising a moving frame (901), a sliding plate (902), a door-removing hook (903) and a door-removing hydraulic cylinder (904), two door-removing hooks (903) are provided, the two door-removing hooks (903) are connected by a rod body and are slidably arranged on the sliding plate (902) up and down, and are driven by one door-removing hydraulic cylinder (904), and the sliding plate (902) is slidably arranged on the moving frame (901).

10. The closed type high-efficiency dust removal coke intercepting vehicle according to claim 1, characterized in that: The dust removal fan (303) is a wet cyclone dust removal fan, and the exhaust port of the wet cyclone dust removal fan is also connected to the muffler chamber (304).

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